Quote:
Originally Posted by DrHitch
Backflow preventers....comments:
1) be thankful you don't live in many northern states. Every residence with irrigation system requires a backflow preventers and it MUST be put in and removed every season by a licensed contractor... Really dumb
2) backflow preventers in general are a waste since the up-river supply is always at a higher pressure. You'd have to force water at 100psi to contaminate the water supply
3) yes, the Villages is one of the few developments I know of that has a separate irrigation supply system....good planning
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Backflow preventers aren’t intended to help much when everything is working correctly and the supply side is 60psi higher than the rest of the system. They come into play when the supply side pressure drops or even goes negative. Does this happen often? Not at all but when it does you want the backflow preventer in place to protect the system.
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Randallstown, MD
Yakima, WA
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